PokerSolver
PokerSolver/6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO 4-bet 17.25bb

BTN vs CO 4-bet 17.25bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb · Button to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 27.21bbYour cards?
7.5bb
0.5bb
1bb
17.25bb

Tap your two cards.

Button's range

374 of 1,326 combos get here
Fold 58.4%Call 23.6%All-in 79.84bb 18%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

CO opens 2.5bb, BTN 3-bets to 7.5bb, CO 4-bets to 17.25bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the button (BTN) folds 58.4%, calls 23.6% and goes all-in 79.84bb 18%. Always call: AA, 77-99, 55, ATs-AQs, KQs, KTs, QTs+, JTs, 76s, 65s. Always all-in 79.84bb: TT-KK, AKs, A4s-A5s, KJs, AKo. Mixed: 66, A7s-A9s, A3s, K9s, T9s, 87s, AQo.

Always fold
A6s, A2s, K3s-K8s, Q8s-Q9s, J8s-J9s, T8s, A8o-AJo, A5o, KTo+, QTo+, JTo
Always call
AA, 77-99, 55, ATs-AQs, KQs, KTs, QTs+, JTs, 76s, 65s
Always all-in 79.84bb
TT-KK, AKs, A4s-A5s, KJs, AKo
Mixed
66, A7s-A9s, A3s, K9s, T9s, 87s, AQo
Settings: 6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.92). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Rake sources for the games it fits: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.